JP2011103256A - リチウム二次電池用負極およびその製造方法 - Google Patents
リチウム二次電池用負極およびその製造方法 Download PDFInfo
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- H—ELECTRICITY
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- H01M4/02—Electrodes composed of, or comprising, active material
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- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H01M4/0416—Methods of deposition of the material involving impregnation with a solution, dispersion, paste or dry powder
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- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0421—Methods of deposition of the material involving vapour deposition
- H01M4/0423—Physical vapour deposition
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- H01M4/0473—Filling tube-or pockets type electrodes; Applying active mass in cup-shaped terminals
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- H01M4/64—Carriers or collectors
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Abstract
【解決手段】本発明によって提供されるリチウム二次電池用負極10は、負極活物質36を含む負極活物質層30が負極集電体20上に保持された構成を有する。負極活物質層30は、負極集電体20上に形成されたカーボンナノウォール32と、カーボンナノウォール32に担持された負極活物質36とを備える。
【選択図】図1
Description
なお、電池の高容量化を目的とするものではないが、非特許文献1には、カーボンナノウォールを負極材(負極活物質)として用いることが記載されている。カーボンナノウォールに関する他の技術文献として特許文献2,3が挙げられる。
10 負極
20 負極集電体
30 負極活物質層
32 カーボンナノウォール
34 ウォール
36 負極活物質(粒状)
52 ケース
54 ケース本体
56 蓋体
60 セパレータ
70 正極
80 捲回電極体
82 正極端子
84 負極端子
86 負極リード端子
88 正極リード端子
90 チャンバ
92A,92B 平板電極
94 導入管
95 ヒータ
96 プラズマ発生源
98 高周波出力装置
99 コイル
100 リチウム二次電池
110 負極
120 負極集電体
130 負極活物質層
132 カーボンナノウォール
134 ウォール
136 負極活物質(膜状)
190 チャンバ
192 セラミックヒータ
194 攪拌槽
196 バルブ
Claims (12)
- 負極活物質を含む負極活物質層が負極集電体上に保持された構成を有するリチウム二次電池用負極であって、
前記負極活物質層は、前記負極集電体上に形成されたカーボンナノウォールと、該カーボンナノウォールに担持された負極活物質とを備える、リチウム二次電池用負極。 - 前記負極活物質は、粒状に形成され、前記ウォール間の隙間に充填されている、請求項1に記載のリチウム二次電池用負極。
- 前記負極活物質は、膜状に形成され、前記ウォールの表面を被覆している、請求項1に記載のリチウム二次電池用負極。
- 前記負極活物質としてリチウム合金が用いられる、請求項1から3の何れか一つに記載のリチウム二次電池用負極。
- 負極活物質を含む負極活物質層が負極集電体上に保持された構成を有するリチウム二次電池用負極の製造方法であって、
負極集電体上にカーボンナノウォールを形成する工程と、
前記カーボンナノウォールに負極活物質を担持させて負極活物質層を形成する工程と
を含む、リチウム二次電池用負極の製造方法。 - 前記負極活物質を粒状に形成し、前記ウォール間の隙間に充填する、請求項5に記載の負極製造方法。
- 前記粒状の負極活物質の充填は、超臨界流体法を用いて行われる、請求項6に記載の負極製造方法。
- 前記負極活物質を膜状に形成し、前記ウォールの表面を被覆する、請求項5に記載の負極製造方法。
- 前記膜状の負極活物質の形成は、気相成長法を用いて行われる、請求項8に記載の負極製造方法。
- 前記負極活物質としてリチウム合金を用いる、請求項5から9の何れか一つに記載の負極製造方法。
- 請求項1から4の何れか一つに記載の負極もしくは請求項5から10の何れか一つに記載の方法により製造された負極を備えるリチウム二次電池。
- 請求項11に記載のリチウム二次電池を搭載する車両。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009258396A JP5130275B2 (ja) | 2009-11-11 | 2009-11-11 | リチウム二次電池用負極およびその製造方法 |
KR1020127012089A KR101316191B1 (ko) | 2009-11-11 | 2010-11-10 | 리튬 2차 전지용 음전극, 음전극을 준비하기 위한 방법, 음 전극을 갖는 리튬 2차 전지, 및 리튬 2차 전지를 갖는 차량 |
CN201080051070XA CN102668180B (zh) | 2009-11-11 | 2010-11-10 | 锂二次电池用负电极、制备该负电极的方法、具有该负电极的锂二次电池以及具有该锂二次电池的车辆 |
PCT/IB2010/002862 WO2011058416A1 (en) | 2009-11-11 | 2010-11-10 | Negative electrode for lithium secondary battery, method for preparing the negative electrode, lithium secondary battery having the negative electrode, and vehicle having the lithium secondary battery |
US13/508,553 US8551657B2 (en) | 2009-11-11 | 2010-11-10 | Negative electrode for lithium secondary battery, method for preparing the negative electrode, lithium secondary battery having the negative electrode, and vehicle having the lithium secondary battery |
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JP2009258396A JP5130275B2 (ja) | 2009-11-11 | 2009-11-11 | リチウム二次電池用負極およびその製造方法 |
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JP (1) | JP5130275B2 (ja) |
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WO (1) | WO2011058416A1 (ja) |
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JP2013073846A (ja) * | 2011-09-28 | 2013-04-22 | Sony Corp | リチウムイオン二次電池 |
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WO2013187452A1 (ja) | 2012-06-13 | 2013-12-19 | 株式会社三五 | リチウム二次電池用負極及びその製造方法 |
WO2014069310A1 (ja) | 2012-10-29 | 2014-05-08 | 株式会社三五 | リチウムイオン二次電池用負極及びその製造方法 |
JP2018060804A (ja) * | 2017-11-28 | 2018-04-12 | 株式会社半導体エネルギー研究所 | 蓄電装置 |
JP2018073817A (ja) * | 2016-10-12 | 2018-05-10 | 輝能科技股▲分▼有限公司Prologium Technology Co., Ltd. | リチウム金属電極およびそれに関連するリチウム金属電池 |
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JP2013073846A (ja) * | 2011-09-28 | 2013-04-22 | Sony Corp | リチウムイオン二次電池 |
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US9368795B2 (en) | 2012-06-13 | 2016-06-14 | Sango Co., Ltd. | Lithium secondary battery negative electrode and method for manufacturing the same |
WO2014069310A1 (ja) | 2012-10-29 | 2014-05-08 | 株式会社三五 | リチウムイオン二次電池用負極及びその製造方法 |
US9520595B2 (en) | 2012-10-29 | 2016-12-13 | Sango Co., Ltd. | Negative electrode for lithium-ion secondary cell and method for manufacturing same |
JP2018073817A (ja) * | 2016-10-12 | 2018-05-10 | 輝能科技股▲分▼有限公司Prologium Technology Co., Ltd. | リチウム金属電極およびそれに関連するリチウム金属電池 |
JP2018060804A (ja) * | 2017-11-28 | 2018-04-12 | 株式会社半導体エネルギー研究所 | 蓄電装置 |
JP2018142001A (ja) * | 2018-04-25 | 2018-09-13 | 株式会社Ihi | 可飽和吸収素子、及びレーザ装置 |
WO2021201199A1 (ja) * | 2020-04-01 | 2021-10-07 | 国立大学法人東海国立大学機構 | 蓄電デバイスおよび蓄電デバイス用電極 |
JP2022127231A (ja) * | 2021-02-19 | 2022-08-31 | プライムアースEvエナジー株式会社 | 二次電池、及び二次電池用電極の製造方法 |
JP7488208B2 (ja) | 2021-02-19 | 2024-05-21 | プライムアースEvエナジー株式会社 | 二次電池、及び二次電池用電極の製造方法 |
WO2024106320A1 (ja) * | 2022-11-14 | 2024-05-23 | 名古屋市 | カーボンナノウォール電極及びその製造方法 |
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US20120225353A1 (en) | 2012-09-06 |
WO2011058416A1 (en) | 2011-05-19 |
US8551657B2 (en) | 2013-10-08 |
CN102668180B (zh) | 2013-11-20 |
KR101316191B1 (ko) | 2013-10-08 |
KR20120062935A (ko) | 2012-06-14 |
JP5130275B2 (ja) | 2013-01-30 |
CN102668180A (zh) | 2012-09-12 |
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